Why it works: Anchovy and ketchup match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 479 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Fish Scalloped
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the sauce
Melt the butter in a saucepan over medium heat.
Add the flour and cook for 3-4 minutes.
Pour in the milk, stir until it boils, then let it simmer for 10 minutes.
Assemble and bake
Separate the fish into large flakes.
Add the fish to the sauce along with anchovy essence, ketchup, mustard, salt, pepper, and cayenne.
Stir over heat until the mixture is thoroughly hot.
Fill buttered scallop shells with the mixture.
Lightly cover with breadcrumbs and dot with small pieces of butter.
Bake in a 400°F (200°C) oven until nicely browned, or use a salamander to brown the surface.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Anchovy + ketchuptop 2% of all pairsSmell alikestrongCooked together479 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Walnut + mustardtop 9% of all pairsSmell alikestrongCooked together849 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Fish + anchovytop 9% of all pairsSmell alikelowCooked together637 recipes
Shared aroma: decanal (soap, orange peel).
-
Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Forms the main body of the filling, providing flaky texture and the dish's core flavor.
- Butter
- Enriches the sauce and adds richness and browning to the breadcrumb topping.
- Flour
- Thickens the milk into a smooth sauce that holds the fish together.
- Milk
- Forms the liquid base of the sauce, giving it a creamy body.
- Anchovy essence
- Adds a salty, savoury depth to the sauce.
- Walnut ketchup
- Adds a dark, tangy, savoury flavour that deepens the sauce.
The step that matters
Simmering the white sauce. Flour must cook in the butter and then simmer in the milk so its starch swells fully and the raw, pasty taste cooks out. Stirring keeps it smooth and prevents lumps from forming.
Swap the mustard
How well each one fits the dish's main ingredients (fish, butter, flour, milk, anchovy, walnut, ketchup):
- Shallotfits better
- Capsicumfits better
- Chivefits better
- Mustardthe original
Fit is the average pairing score against fish, butter, flour, milk, anchovy, walnut, ketchup. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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